出现这种错误, 是要具体问题具体分析, 我在网上搜索发现各自的状况和解决方案都不一样.
今天在进行Excel的批量赋值的时候发现这个问题.
protected override void FillTableData(Excel.Range DataStartRng, System.Collections.ArrayList LeafItems, DataView dv)
{
dv = rebuildData(dv,LeafItems);
//int x,y;
//x = dv.Count;
//y = LeafItems.Count;
//Object[,] datas = new object[x,y];
//for(int i=0;i<x;i++)
//{
// for(int j=0; j<y ;j++)
// {
// datas[i,j] = dv[i][((RelationItem)LeafItems[j]).ColumnName];
// }
//}
//Excel.Range dataRng = getRangeByRectangle(y,x,DataStartRng);
//dataRng.Value = datas;
//dataRng = null;
Excel.Range dataRng = DataStartRng;
int cycleRunTimes = dv.Count / MAX_EVALUATE_LINES + (dv.Count % MAX_EVALUATE_LINES > 0 ? 1 : 0);
for (int i = 0; i < cycleRunTimes; i++)
{
object[,] datas =null;
try
{
datas = getSegmentData(i, dv, LeafItems);
dataRng = getRangeByRectangle(datas.GetLength(1), datas.GetLength(0), dataRng);
}
catch (Exception ex)
{
throw new Exception(string.Format("取得segment data出错,dv[..] = {0} , Error :{1}",
dv[i * MAX_EVALUATE_LINES][0],
ex.ToString()));
}
try
{
dataRng.Value = datas;
}
catch (Exception ex)
{
throw new Exception(string.Format("赋值segment data出错,data[..] = {0} , address :{1}, Error :{2}",
datas[0,0],
dataRng.get_AddressLocal(false, false, Excel.XlReferenceStyle.xlA1, m_objOpt, m_objOpt),
ex.ToString()));
}
#if DEBUG
System.Diagnostics.Debug.WriteLine(String.Format("Lines: {0}, dataRng: {1} "
,
i,
dataRng.get_AddressLocal(false, false, Excel.XlReferenceStyle.xlA1, m_objOpt, m_objOpt)));
#endif
dataRng = dataRng.get_Offset(datas.GetLength(0), m_objOpt);
}
}
const int MAX_EVALUATE_LINES = 10;
如果我修改 MAX_EVALUATE_LINES = 100 的时候,就会时不时出现标题的错误.
减小MAX_EVALUATE_LINES 则不会出问题.